AJAX Helpers are used to create AJAX enabled elements like as Ajax enabled forms and links which performs request asynchronously. AJAX Helpers are extension methods of AJAXHelper class which exist in System.Web.Mvc namespace. AJAX HTML Element Example AJAX-enabled link based on action/controller @Ajax.ActionLink(“Load Products”, “GetProducts”, new AjaxOptions {UpdateTargetId = “Products-container”,… Continue reading
The ValidationSummary helper displays an unordered list of all validation errors in the ModelState dictionary. It accepts a boolean value (i.e. true or false) and based on boolean value it display the errors. When boolean parameter value is true, it shows only model-level errors and excludes model property-level errors (i.e any… Continue reading
Url helpers allows you to render HTML links and raw URLs. The output of these helpers is dependent on the routing configuration of your ASP.NET MVC application. HTML Element Example Relative URL @Url.Content(“~/Files/asp.netmvc.pdf”) Output: /Files/asp.netmvc.pdf Based on action/controller @Html.ActionLink(“About Us”, “About”, “Home”) Output: <a href=”/Home/About”>About Us</a> @Html.ActionLink(“About Me”, “About”, “Home”,… Continue reading
Delegate Interface We can define multiple methods by using delegate. Interface defines only a single method. No need to implement multiple times. Need to implement the interface multiple times. Fastest to call at runtime when we know all the parameter types. Well designed interfaces are allowed for generic uses which… Continue reading
There are three types of HTML helpers as given below: Inline Html Helpers – These are create in the same view by using the Razor @helper tag. These helpers can be reused only on the same view. @helper ListingItems(string[] items) { <ol> @foreach (string item in items) { <li>@item</li> }… Continue reading
These helpers figure out what HTML elements are required to render based on properties of your model class. This is a very flexible approach for displaying data to the user, although it requires some initial care and attention to set up. To setup proper HTML element with Templated HTML Helper,… Continue reading
These helpers are used to render the most common types of HTML elements in strongly typed view like as HTML text boxes, checkboxes etc. The HTML elements are created based on model properties. The strongly typed HTML helpers work on lambda expression. The model object is passed as a value… Continue reading
These helpers are used to render the most common types of HTML elements like as HTML text boxes, checkboxes etc. A list of most common standard html helpers is given below: HTML Element Example TextBox @Html.TextBox(“Textbox1”, “val”) Output: <input id=”Textbox1″ name=”Textbox1″ type=”text” value=”val” /> TextArea @Html.TextArea(“Textarea1”, “val”, 5, 15, null)… Continue reading
An HTML Helper is just a method that returns a HTML string. The string can represent any type of content that you want. For example, you can use HTML Helpers to render standard HTML tags like HTML <input>, <button> and <img> tags etc. You can also create your own HTML… Continue reading
The main differences between ASP.NET Web Form and ASP.NET MVC are given below: Razor View Engine Webform View Engine Razor Engine is an advanced view engine that was introduced with MVC3. This is not a new language but it is a new markup syntax. Web Form Engine is the default… Continue reading